[U-Boot-Users] --- at91, Nand
In at91rm9200dk, for Nand support, - can the pin PC7 be used instead of PC1 (the custom board made this way)?
I change PC1 to PC7 within u-boot everywhere, it won't work: I see SMWE strobe (pin PC3) drops down and never rises, the system hangs...
Best regards, Andrew
Hello!
Zhukov schrieb:
I change PC1 to PC7 within u-boot everywhere, it won't work: I see SMWE strobe (pin PC3) drops down and never rises, the system hangs...
Are you also using PC6 for any purpose? Do you (accidentally) configure it as an output? Or do you either use it as an input or don't enable an internal or external pull-up resistor?
You should check the signal level on PC6 in order to find out if you hit erratum "NWAIT activity depend on use of PC6".
With best regards Andreas Schweigstill
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Andreas Schweigstill -
Zhukov